ladybird/Kernel/Syscalls/uname.cpp

40 lines
944 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Process.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$uname(Userspace<utsname*> user_buf)
{
VERIFY_NO_PROCESS_BIG_LOCK(this)
TRY(require_promise(Pledge::stdio));
utsname buf {};
memcpy(buf.sysname, "SerenityOS", 11);
memcpy(buf.release, "1.0-dev", 8);
memcpy(buf.version, "FIXME", 6);
#if ARCH(I386)
memcpy(buf.machine, "i686", 5);
#elif ARCH(X86_64)
memcpy(buf.machine, "x86_64", 7);
#elif ARCH(AARCH64)
memcpy(buf.machine, "AArch64", 7);
#else
# error Unknown architecture
#endif
hostname().with_shared([&](auto const& name) {
auto length = min(name->length(), UTSNAME_ENTRY_LEN - 1);
memcpy(buf.nodename, name->characters(), length);
buf.nodename[length] = '\0';
});
TRY(copy_to_user(user_buf, &buf));
return 0;
}
}